Enable the validation after Save as Draft and then clicking submit button

After clicked the Save as Draft button and do not leave the page.
The validation rules will not work.


For example:
A validation rule is: Invalid when Field.Value > 1000
Input the field value: 1200

Step 1. Clicking Submit button: Validation Error. (work as expected)

Step 2. Clicking Save as Draft. Save successfully. Do not leave the page. (work as expected)

Step 3. Clicking Submit button. User can bypass the validation rules. (Unexpected result)